code: def version_match(self, version_string):
      m = re.search(self.version_pattern, version_string)
      if m:
          return m.group("version")
      else:
          return None
  
file_path: catboost/contrib/python/numpy/py2/numpy/distutils/fcompiler/nag.py
imports: from __future__ import division, absolute_import, print_function
  import sys
  import re
  from numpy.distutils.fcompiler import FCompiler
label_desc: Use image node_id 1 for calling the BaseNAGFCompiler obj's underlying member method code with example usage: obj.version_match(version_string) and returns: m, None